.main-reg {
  position: relative;
  width: 100%;
}
.main-reg .mask {
  position: absolute;
  top: -2rem;
  width: 100%;
  text-align: center;
  height: 4rem;
  line-height: 4;
  color: red;
}
.main-reg form {
  margin-top: 1.5rem;
  padding: 2.5rem;
}
.main-reg form .input-group {
  margin-bottom: 1rem;
}
.main-reg form .agreement {
  text-align: center;
  color: #cd0301;
}
.main-reg form .sub-reg {
  margin-top: 2rem;
  border-radius: 8px;
  width: 10rem;
  height: 2rem;
  background-color: #cd0301;
  color: #fff;
}
.main-reg form .code-tel {
  background-color: #cd0301;
  color: #fff;
  height: 34px;
  border-radius: 5px;
}
